Identifying drought propagation by simultaneously considering linear and nonlinear dependence in the Wei River basin of the Loess Plateau, China

Meteorological drought propagating to hydrological drought usually occurs with a noticeable time delay due to the catchment buffering effect. Knowledge gain in the delayed hydrological response is indispensable for developing timely drought monitoring systems. In this study, a two-stage statistical framework is proposed for identifying the response time of hydrological droughts to meteorological droughts at a weekly resolution. Candidate …